Question: Who was the head of government in Brunswick until 2001-10-31?
Paraphrase: I want to know the name of the head of government in Brunswick until 2001!
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q2773 p:P6 ?s . ?s ps:P6 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'2001')) }